I am able to create a new *.prety, but I am not able to select this library after the creation.

I have watched the video “Getting To Blinky 4.0 - Creating A New Library And Footprint”, but I cannot find the footprint-wizzard, to select my lokal path.
Maybe, on OS X 10.116, there is another way, to do it? Does anybody use kicad on OS X and can tell me, how I can a footprint library that is located within my project-path?